Metal weather-strip.



'No. 733,991. PATENTED JULY 21, 1903.

J. G. MOMAHON- METAL WEATHER STRIP. APPLICATION FILED JUNE 27, 1902.

N0 MODEL.

UNITED STATES Patented July 21, 1903.

PATENT OFFICE.

JOSIAH O. MCMAHON, QF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO CHAM- BERLIN METAL \VEATHER STRIP COMPANY, OF DETROIT, MICHIGAN.

METAL, WEATH ER -sTRl P.

' srEoIFIcA'rIoN forming part of Letters Patent No. 733,991, dated July 21, 1903.

Application filed June 27, 1902. Serial No. 113,445. (No model-) To all whom it may concern.-

Be it known that I, JOSIAH C. MCMAHON, acitizen of the United States,residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Metal Weather- Strips; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in [O the art to which. it appertains to make and use I 5 in the construction and arrangement-of parts the same.

This invention relates to an improvement in weather-strips, more particularly to the so-called metal type; and it is embodied presently to be described, and defined in the claim.

The object of the invention is to provide a metal strip for windows, especially sliding windows, which will have a spring capacity and character, so that variations in the width of sash or between the bottoms of the opposite guideways of the window-frame may be compensated for in a simple, expeditious, and 2 5 inexpensive manner.

It isnow recognized that the metal weatherstrip is one of the most satisfactory types of strips for sliding sashes, and it has been the practice heretofore to form these strips of 1 sheet metal, usually zinc, the strips having a tongue formed of the metal bent into substantially Ushape and being attached usually on opposite sides of the tongue. My present invention ,is of this type, but embodies a peculiar formation of tongue associated with a spring or yielding portion, using in connection therewith a recessed sash.

While I have shown in the accompanying drawings the strip astattached to the frame 0 of a window, it is. of course obvious that the strip may be attached to the sash or in an order reverse from that shown in the draw- 1 ings. I also desire'it understood that the principle of the invention may be embodied 5 in forms slightly difierent from those' shown frame. Figs. 3 and 4 are enlarged views ofone-half of the strip, showing the same in different positions. Fig. 5 is a modified form of strip. Fig. 6 is a modified form of strip adapted to serve as a parting-bead.

' In the drawings, A designates the windowcasing; B, the sliding sash-frame.

C and O designate the beads and D designates the improved strip. This strip is conveniently formed with a fiat base portion d,

havinga series ofi perforations therein through which the same may be attached to the carrying member. At opposite edges of the body portion (1 are obliquely-arranged spring portions d, which are normally deflected at an angle to the base or body portion, terminating at their outer ends in angular'or V- shaped sealing-flanges E, which are presented outwardly. These flanges or sealing-flanges are arranged so that normally the same will stand or be in a position with the apex directed in a direction parallel with the sides of the sash B, as shown in Fig. 2. In the sash B are formed two V-shaped grooves F, located conveniently adjacent the edges of the sash and arranged in, direct line with the sealing portions of grooves F are substantially those of the outer faceof the sealingV-shaped portionofthestrip',

contact with one of the walls of the groove. This feature of the inventionis an important featurein that, irrespective of the'relative positions of the sash and frame, there is always'a close joint or contact formed between the strip and the-sash, and-the peculiar construction and arrangementjprevents any side tion of the strip acts not only as a sealing device, but as a means to. prevent any trans-- verse movement of the sash.

In Fig. 5 I have shown a slightly-modified form, the same consisting of but a single sealing portion h, the spring portion h between rattling of the sash in that the V-shaped por- '75 the strip D. The size or dimensions of the The invention is also embodied in the structare such as shown in Fig. 6, wherein the spring-arms k are bent at more nearly a right 1 angle to the body, and the V-shaped sealing portions are formed on the reverse or opposite side to that shown in the other figures. In thatparticular construction the metal strip is used not only as a weather-strip, but as a parting-bead between adjacent sashes, the sashes being designated at B B The V- shaped projections or sealing portions enter grooves in the respective sashes.

From the foregoing description it will be observed that a very close joint is maintained for the window and one which will etfectually prevent rattling. It will also be observed that no separate spring members or other parts or features are needed, the entire device consisting of the metal strip having a sealing portion and a yielding connecting portion bepered brass, although I do not wish to be limited to that particular material.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

The combination with a frame and a sash member having a groove with diverging walls, of a metal weather and holding strip secured to the frame .having a flat securing portion, an inclined spring portion and an outer bent sealing portion shaped to fit the groove in the sash.

In testimony whereof I affix my signature in presence of two witnesses.

, JOSIAH (J. MCMAHON.

Witnesses:

CHARLES M. JOHNSTON, WM. 0. BOYD. 

